Vehicular Monitoring Device

2. The vehicular monitoring device according to claim 1, wherein, when the statistic calculated from the time series data of the eye opening degree acquired from the driving state measurement unit is kept outside the predetermined normal determination reference range for a predetermined time, and when is determined that the driving states other than the eye opening degree are normal and that the traveling state is also normal, the alarm determination unit causes the driving state measurement unit to re-execute the process of detecting the eye opening degree.

4. The vehicular monitoring device according to claim 1, wherein, even when the statistic calculated from the time series data of the eye opening degree acquired from the driving state measurement unit is outside the predetermined normal determination reference range, when is determined that the driving states other than the eye opening degree are normal and that the traveling state is also normal, the alarm determination unit prohibits activation of the alarm device.

6. The vehicular monitoring device according to claim 1, wherein, when the statistic is outside the predetermined normal determination reference range, after is determined that the driving states other than the eye opening degree are abnormal and that the traveling state is abnormal, the alarm determination unit activates the alarm device.

7. The vehicular monitoring device according to claim 1, wherein, when the statistic is outside the predetermined normal determination reference range, only after is determined that the driving states other than the eye opening degree are abnormal and that the traveling state is abnormal, the alarm determination unit activates the alarm device.